I have 5 hens 24-28 weeks. I started getting eggs a month ago. At the most 2-3 a day. Now I'm lucky to get 1 a day. I'm even leaving them shut in their coop and attached run because I thought maybe they had started laying while free ranging. But still 1 a day. It's starting to get down into 20's here at night. Could the temp cause them to stop laying right after they started? Will it be like this all winter?